钢结构
鋼結構
강결구
STEEL CONSTRUCTION
2009年
6期
32-35
,共4页
赵芳琴%牛忠荣%鲁栋%闫艳
趙芳琴%牛忠榮%魯棟%閆豔
조방금%우충영%로동%염염
加固%钢结构%有限元法%焊接%碳纤维复合材料
加固%鋼結構%有限元法%銲接%碳纖維複閤材料
가고%강결구%유한원법%한접%탄섬유복합재료
strengthen%steel structure%finite element method%weld%CFRP
碳纤维增强复合材料(CFRP)加固混凝土结构目前已经得到广泛应用,但在钢结构加回方面应用尚少.通过有限元软件ANSYS对碳纤维布和碳纤维板加固焊接工字钢梁进行变形和应力场分析,得出CFRP片材加固可增强钢梁的刚度,降低钢梁的最大应力.该分析结果可用于钢梁疲劳寿命分析.
碳纖維增彊複閤材料(CFRP)加固混凝土結構目前已經得到廣汎應用,但在鋼結構加迴方麵應用尚少.通過有限元軟件ANSYS對碳纖維佈和碳纖維闆加固銲接工字鋼樑進行變形和應力場分析,得齣CFRP片材加固可增彊鋼樑的剛度,降低鋼樑的最大應力.該分析結果可用于鋼樑疲勞壽命分析.
탄섬유증강복합재료(CFRP)가고혼응토결구목전이경득도엄범응용,단재강결구가회방면응용상소.통과유한원연건ANSYS대탄섬유포화탄섬유판가고한접공자강량진행변형화응력장분석,득출CFRP편재가고가증강강량적강도,강저강량적최대응력.해분석결과가용우강량피로수명분석.
A significant number of concrete members were strengthened by carbon fiber reinforced polymer (CFRP). However there are only a few applications in strengthening steel structure with CFRP. In this paper, the influences of CFRP plates and sheets in strengthening steel structure are studied with finite element method (FEM).The computed results show that the CFRP enhance the rigidity and reduce the maximum stress of welded steel beams. The present results can be used to evaluate the fatigue life of welded 1-beam strengthened with CFRP.
